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yontooclientsetup.exe

Yontoo Layers Client

Yontoo Technology, Inc.

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application yontooclientsetup.exe by Yontoo Technology has been detected as adware by 8 anti-malware scanners. This is a setup and installation application and has been known to bundle potentially unwanted software.
Publisher:
Yontoo Technology, Inc.  (signed and verified)

Product:
Yontoo Layers Client

Description:
Installer

Version:
2010.7.22.1338

MD5:
40916653d24230bc9db4b03d6f782433

SHA-1:
296fe78c9f9ceeb59fb5c78d02f28c786fc800a7

SHA-256:
8c04e73352dd95a147be7a443ec8b83c6abb9e7c50f9a907b761533998897c07

Scanner detections:
8 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
12/25/2024 12:06:13 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/Yontoo.Gen
7.11.187.200

Baidu Antivirus
Trojan.Win32.InstallRex
4.0.3.16121

Bkav FE
W32.Clod3e4.Trojan
1.3.0.4959

IKARUS anti.virus
AdWare.Yontoo
t3scan.1.6.1.0

Reason Heuristics
PUP.Yontoo.YontooTechnology.Installer (M)
16.1.21.21

Rising Antivirus
Trojan.InstallRex!562A
23.00.65.16119

Trend Micro House Call
Suspicious_GEN.F47V0711
7.2.21

VIPRE Antivirus
Yontoo
34956

File size:
591.1 KB (605,264 bytes)

Product version:
1.10.01

Copyright:
(c) Yontoo Technology, Inc.. All rights reserved.

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\yontooclientsetup.exe

Digital Signature
Signed by:
Yontoo Technology, Inc.

Authority:
GoDaddy.com, Inc.

Valid from:
9/2/2009 12:41:20 PM

Valid to:
9/2/2012 12:41:20 PM

Subject:
CN="Yontoo Technology, Inc.", OU=Product Development, O="Yontoo Technology, Inc.", L=Carlsbad, S=CA, C=US

Issuer:
SERIALNUMBER=07969287, CN=Go Daddy Secure Certification Authority, OU=http://certificates.godaddy.com/repository, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
6A08909DDA7B

File PE Metadata
Compilation timestamp:
6/15/2010 5:59:55 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
12288:J7d6CF/WkJeAdHTNgWt4hAZNM1VhS+nx+p0q0DtS4Eonz:n2k0AftfZNM/U+nop0BtS4lz

Entry address:
0x1627

Entry point:
55, 8B, EC, 81, EC, 58, 0B, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, A8, F4, FF, FF, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 00, 40, 40, 00, FF, 15, 70, 30, 40, 00, 89, 45, F8, 8D, 85, B8, FC, FF, FF, 50, C7, 85, B8, FC, FF, FF, 14, 01, 00, 00, FF, 15, 6C, 30, 40, 00, 85, C0, 75, 21, FF, 15, 14, 30, 40, 00, 50, 68, 30, 34, 40, 00, E8, 40, FA, FF, FF, 59, C7, 05, 04, 40, 40, 00, FF, 00, 00, 00, E9, C5, 01, 00, 00, 68, 1C, 34, 40, 00, 68, 0C, 34, 40, 00, FF, 15, 68, 30, 40, 00, 50, FF, 15, 64, 30, 40, 00, 3B...
 
[+]

Entropy:
7.9884

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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